oj.uz

Submission #293438

# Submission time Handle Problem Language Result Execution time Memory
293438 2020-09-08T05:16:14 Z updown1 Mate (COCI18_mate) Java 11
20 / 100
 895 ms 131072 KB 
import java.util.*;
import java.io.*;
public class mate {
    public static void main(String[] args) throws IOException{
        BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
        PrintWriter pw = new PrintWriter(new OutputStreamWriter(System.out));
        String str = bf.readLine();
        long mod = 1000000007;
        char[] array = new char[str.length()];
        int N = array.length;
        for(int i = 0; i < str.length(); i++)array[i] = str.charAt(i);
        int[] s = new int[N];
        for(int i = 0; i < N; i++)s[i] = array[i]-96;

        long [][][][] dp = new long[N+1][N+1][27][27];
        for(int i = 0; i < N; i++){
            /*for(int c = i; c >= 0; c--){
                int num = array[c]-96;
                //dp[i][1][num][0] = 1;
                dp[i][1][0][num] = 1;
            }*/
            dp[i][1][0][s[i]] = 1;
        }
        
        for(int x = 1; x < N; x++){
            for(int length = 1; length <= N; length++){
                for(int i = 0; i <= 26; i++){
                    for(int c = 0; c <= 26; c++){
                        if(c == s[x]){
                            for(int d = 0; d < 26; d++){
                                dp[x][length][i][c] += dp[x-1][length-1][d][i];
                                dp[x][length][i][c] %= mod;
                            }
                        }
                        //else{
                            dp[x][length][i][c] += dp[x-1][length][i][c];
                            dp[x][length][i][c] %= mod;
                        //}
                        /*if (dp[x][length][i][c] != 0) {
                          System.out.println(x + " " + length + " " + i + " " + c + ": " + dp[x][length][i][c]);
                          if(c == s[x-1]){
                            System.out.println("match " + c);
                          }
                        }*/
                    }
                }
            }
        }
        int Q = Integer.parseInt(bf.readLine());
        for(int i = 0; i < Q; i++){
            StringTokenizer stk = new StringTokenizer(bf.readLine());
            int num = Integer.parseInt(stk.nextToken());
            String[] XY = stk.nextToken().split("");
            int letter1 = XY[0].charAt(0)-96;
            int letter2 = XY[1].charAt(0)-96;
            pw.println(dp[N-1][num][letter1][letter2]);
        }
        pw.close();
    }
}

Subtask #1
20.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 764 ms 70220 KB Output is correct
2 Incorrect 635 ms 65872 KB Output isn't correct
3 Correct 690 ms 65724 KB Output is correct
4 Incorrect 875 ms 68240 KB Output isn't correct
5 Runtime error 755 ms 131072 KB Execution killed with signal 9
6 Runtime error 860 ms 131072 KB Execution killed with signal 9
7 Runtime error 895 ms 131072 KB Execution killed with signal 9
8 Runtime error 741 ms 131072 KB Execution killed with signal 9
9 Runtime error 850 ms 131072 KB Execution killed with signal 9
10 Runtime error 850 ms 131072 KB Execution killed with signal 9